public class Circular extends Graphical{
    private double r;

    public double getR() {
        return r;
    }

    public void setR(double r) {
        this.r = r;
    }

    Circular circular = new Circular();
    Circular(){
        super();
    }
    public double area(){
        return 3.14*r*r;
    }

}
